I'd go for faster clubs, you'll need them at some point so you may as well get used to them now.
There's a set of Ping G10 at level 35, just a few rounds away for you. The level 59 ones will get you through to legend no bother and you'll already know the clubs when you get them.
After that, well, wait and see what comes along. The R11 look great but it'll take ages to get there. With them in the shop though there's not much point buying the Burner 2's.